Set unique meta_type.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26246 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Capacity.py

@@ -39,6 +39,8 @@ class Capacity(XMLObject):
     """
         Mix-in
     """
+    meta_type = 'ERP5 Capacity'
+    
     isCapacity = 1
 
     # Declarative security